– 52 –
Pin No.
Pin Name
I/O
Description
80
VB MON
I
Un-regulator power supply voltage monitor input terminal (A/D input)
81
CHG MON
I
Rechargeable battery voltage monitor input from the MPC18A31FTA (IC901) (A/D input)
82
VREF MON
I
Reference voltage monitor input from the SN761056ADBT (IC501) (A/D input)
83
WK DET
I
Set key starting detect signal input terminal (A/D input)
84
HALF LOCK
SW
I
Open knob detect switch (S802) input terminal “L”: normal position, “H”: open knob slid
85
RMC KEY
I
Remote commander with headphone key input terminal (A/D input)
86
SET KEY 1
I
Set key input terminal (A/D input) (
x
,
>
,
.
,VOL +/– keys input)
87
SET KEY 2
I
Set key input terminal (A/D input) (
B
, jog, END SEARCH keys input)
88
REC KEY
I
REC key input terminal
89
VRM MON
I
VREM voltage monitor input terminal (A/D input)
90
HIDC MON
I
HI-DC voltage monitor input terminal (A/D input)
91
AD GND
—
Ground terminal (for A/D converter)
92
AVREF
I
Input terminal for power supply voltage adjustment reference voltage (+2.4V) (for A/D converter)
93
AVDD
—
Power supply terminal (+2.4V) (for A/D converter)
94
TEST0
I
Input terminal for the test (normally: fixed at “L”)
95
TEST1
I
Input terminal for the test (normally: fixed at “L”)
96
TDI
I
Input terminal for JTAG Not used (open)
97
TMS
I
Input terminal for JTAG Not used (open)
98
TCK
I
Input terminal for JTAG Not used (open)
99
TRST
I
Input terminal for JTAG Not used (open)
100
TDO
O
Output terminal for JTAG Not used (open)
101
TSB CLKCTL
O
TSB clock control signal output terminal
102
SSB DATA
I/O
Two-way SSB serial data bus with the SN761056ADBT (IC501)
103
SSB CLK
O
SSB serial clock signal output to the SN761056ADBT (IC501)
104
FLASH WR EN
—
Not used (fixed at “H”)
105
VDD
—
Power supply terminal (+2.4V)
106
VSS
—
Ground terminal
107 to 109 VLC1 to VLC3
—
Power supply terminal for the liquid crystal display (+2.4V)
110
XCS ADA
O
Chip select signal output to the A/D, D/A converter (IC301)
111
XPD ADA
O
Power supply control signal output to the A/D, D/A converter (IC301)
112
XRST MTR DRV
O
Reset signal output terminal “L”: reset Not used (open)
113
OPT DET
I
DIN plug detect signal input terminal
114
XJACK DET
I
LINE IN plug detect signal input terminal
115
XMIC DET
I
MIC plug detect signal input terminal
116
XOPT CONT
O
Power supply control signal output to the DIN plug laser diode
117
MUTE
O
Analog muting on/off control signal output terminal “L”: muting off, “H”: muting on
118
XHP STBY TMP
O
Power supply control signal output to the headphone amplifier Not used (open)
119
XCS NV
O
Chip select signal output to the EEPROM (IC802)
120
XINT REC SW
O
Not used (open)